Home / 1,439,132,400.16-1,986,003,376.70-779,082,678.16

Finding the Fourth Proportional to 1,439,132,400.16, 1,986,003,376.70 and 779,082,678.16

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Solution

The fourth proportional to 1,439,132,400.16, 1,986,003,376.70 and 779,082,678.16 is: 1,075,134,455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,132,400.16 : 1,986,003,376.70 = 779,082,678.16 : x
  2. Step 2: Convert to fraction form
    1,439,132,400.16/1,986,003,376.70 = 779,082,678.16/x
  3. Step 3: Cross multiply
    1,439,132,400.16x = 1,986,003,376.70 × 779,082,678.16
  4. Step 4: Simplify right side
    1,439,132,400.16x = 1,547,260,829,554,239,232
  5. Step 5: Solve for x
    x = 1,547,260,829,554,239,232/1,439,132,400.16
  6. Step 6: Final answer
    x = 1,075,134,455.58

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Double scale
Find fourth proportional to 1,439,132,401.16, 1,986,003,378.08 and 779,082,679.16
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.